Rotary motor.



BUTARY MOTUR.

(Application led Feb. 6, 1899`f) `TNE Nonms PETERS co., PHmaLxmo..msnmc'ron, u. c.

('Nn Model.)

NITED STATES PATENT @Fr-Ice.

ADELBERT SAUER, OF PITTSBURG, PENNSYLVANIA.

ROTARY M OTO R.

SPECIFICATION forming part of Letters Patent No. 662,975, dated December4, 1900.

Application led February 6, 1899. Serial No. 704,680. (No model.)

To all whom it may concern.-

Be it known that I, ADELBERT SAUER, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Rotary Motor, of which thefollowing is a specification.

My invention relates to a rotary motor, and is especially adapted forservice in connection with a circulating system which is supplied With ahigh-pressure motive fiuid by an air-compressing apparatus which formsthe subject-matter of another application filed by me November17, 1898,Serial No. 696,713.

The object of the present invention is to provide a simple and efficientmotor adapted for propulsion by a motive fluid which is admitted to oneside of the piston-chamber and expends its energy on the blades of arotary piston, and such motive iiuid is exhausted from the opposite sideof the piston-chamber, the whole forminga compact motor, having itspiston-shaft equipped with means by which power may be transmitted tomachinery for operating the same.

In my present invention the motor is reversible by the simple adjustmentof a valve between the inlet and exhaust ports, and this motor is drivenby the energy of the motive fluid, and the exhaust from the motor isconnected with suction devices of a generator `included in suchcirculating system, thus providing for the return of the motive fiuid tothe generator for utilization in the system.

With these ends in, view the invention consistsin the novel combinationof elements and in the construction and arrangement of parts, which willbe hereinafter fully described and claimed.

To enable others to understand the invention, I have illustrated thesame in the accompanying drawings, forming a part of this specification,and in which- Figure 1 is a vertical sectional elevation taken in theplanepf the motor-shaft and showing it operatively connected with agenerator that maintains a high-pressure motive iiuid in the circulatingsystem. Fig. 2 is a detail view in sectional elevation of the rotarypiston.

Like numerals of reference denote like and corresponding parts in bothof the figures of the drawings. l

l designates the casing of the motor, which is erected or supported onthe base or pedestal 2. This casing is annular in form and the heads orplates 3 thereof are provided with shaft-bearings 4. The rotary piston 5is mounted on the piston-shaft 5, which is j ournaled in the bearings 4,and this piston operates in the annular chamber 6. The heads or plates3, which form the sidewalls of the casing, are provided with recesses ontheir opposing faces, and on the anges of the headsor plates are rigidlysecured the partitions 7 8, the latter being iixed within themotor-casing contiguous to the piston-chamber 6. The partition 7 forms,in connection with one head or plate, an inlet-chamber 9, to which themotive iiuid is admitted, while the other partition 8 is arranged insuch relation to the other head or plate of the motor-casing as to formthe exhaust-chamber 10. These inlet and exhaust chambers in the heads orplates of the motorcasing do not extend inwardly to the pistonshaft 5,but they terminate a considerable distance away from the shaft. In thepartition 7, forming one of the walls of the inletchamber 9, is aplurality ofinlet-ports 1l, by which the motive uid may freely pass fromthe chamber 9 to the piston-chamber 6, While a like number ofexhaust-ports 12 are formed in the partition 8 to establishcommunication from the piston-cham loer to the exhaust-chamber 10.

A bridge plate or partition 13 is fixed in the upper part of themotor-casing, so as to engage with the partitions 7 8, and thisbridgeplate lies between the piston-chamber 6 and the valve-chest 14 atthe upper 'side of the motor-casing. An exhaust-chamber 15 is formed inthe bridge-plate 13, and the ports 16 17 are also formed in thebridge-plate on opposite sides of the exhaust chamber 15 therein. Theport 16 leads from the valvechest to the chamber 9, while the port 17establishes communication between the chamber 10 and the valve-chest.This bridge-plate Y forms the seat for a slide-valve 18, having achamber in its under side, and this valve is op- IOO eratively'connectedwith a lever 19 by means `of the link 20, whereby the adjustment of theequal to the flanged central portions of the heads 3, forming the sideWalls of the motorcasing, so that the hub lies Hush with the inner edgeof the chambers 9 10 and the arms 22 are fastened securely to the hub21, substantially as shown by Fig. 1. The blades 23 are arrangedobliquely to the piston-shaft, and they are firmly secu red to the endsof the arms 22, which protrude from the piston-hub. It Will be observedthat the blades of the piston lie some distance from the axis of thepiston-shaft and that the motive fluid is admitted to the piston-chamberto act against said blades at a considerable distance from the shaft,thereby utilizing the leverage of the arms on the piston-shaft andeffecting economy in the consumption of the motive fluid, as Well assecuring maximum efficiency of the parts. p

The inlet-pipe 24 is connected to the valvechest 14 to discharge thecompressed motive fluid to the chamber of thechest, and this inlet-pipeis connected with a storage or reservoir chamber 35 of a circulatingsystem 36, Which is charged With compressed motive fluid by a generator37, as graphically indicated by Fig. 1 and as more fully disclosed byanother application filed by me November 17, 1898, Serial No. 696,713,and to which reference has been made. The exhaust motive iiuid from themotor is not discharged into the outer atmosphere; but such exhaust isconveyed by the pipe 25 from the chamber 15 to the suction devices orlow-pressure inlet 38 of the generator in the circulating system,-alsoas represented by Fig. 1 and disclosed by my aforesaid application.

The piston-shaft 5fL is extended beyond one ofthe shaft-bearings 4 tofind a bearing in a fixed standard 26, and on this prolonged end of thepiston-shaft is secured a pulley 27 or other mechanical appliance byWhich the power of the motor-shaft may be transmitted to machinery foroperation thereof. In the su pply-pipe 24 is fitted a governor-valve 28,Which is combined with an ordinary governor 29, having a belt connection30 with the motor-shaft, and this belt connection, as is usual in theart, is fitted to the pulleys 31, secured to the motor-shaft and thegovernorshaft, respectively.

In the operation of the motor the high-pressure fluid from a main or thereservoir 35 of the circulating system is conveyed by the pipe 24 to thevalve-chest, and with the valve adjusted in the position shown in Fig. 1the port 16 establishes communication between the c hest and the chamber9, while said valve covers the port 17 from the chamber 10 to place thelatter in communication with the exhaust-chamber l5. The motive Huidfrom the chamber 9 passes through the ports 11 into the-piston-cham berand expends its euergy against the oblique radial blades of the rotarypiston. The admission of the motive iuid to the piston-chamber expandsthe fluid, and it is of much lower pressure when it emerges 'from thepiston chamber into the chamber 10 by the ports 12 in the partition 8.The reduced pressure fluid or exhaust traverses the port 17 to thechamber 15, and thence through the pipe 25 tothe suction devices or`low-pressure inlet 38 of the generator, and this exhaust iiuid isregenerated by combining the same with a high-pressure motive fiuidconducted through a combining injector forming an element of thegenerator 37. As the exhaust is drawn by suction into the generator, itis not necessary to provide valve devices to control the exhaust fromthe motor back to the generator, and the valve 18 cuts off communicationfrom the inlet and exhaust ports of the motor. A reversal of theposition of the valve by shifting the lever 19 Will cover the port 16and open the port 17, and the motive iuid from the valve-chest will becaused to traverse the ports 16 17 in a reverse direction to drive therotary piston in an opposite direction. The engine or motor may thus bedriven economically and at high speed solely by the energy of the motiveliuid obtained from the circulating system, and the motor may bearrested by the simple operation of closing a stop-cock (not shown) inthe supply-pipe, While a reversal o f the piston may be effected byshifting the position of the valve.

Changes may be made in the form of some of the parts, While theiressential features are retained and the spirit of the inventionembodied. Hence I do not desire to be limited to the precise form of allthe parts as shown, reserving the right to vary therefrom. y

Having thus described the invention, what I claim is- 1. In a rotarymotor, a casing having its heads or plates provided With inlet andexhaust chambers on opposite sides of the pistonchamber and With theperforated partitions between the piston-chamber and said inlet andexhaust chambers,- respectively, in combination With a rotary pistonarranged Within said piston-chamber and having the Wings or blades lyingobliquely to the axis of the piston-shaft,the row of perforations ineach partition being each equalinlength to one blade, substantially asdescribed.

2. In a rotary motor, a casing having a piston-chamber and having itshead on each side recessed or cut away and provided with perforatedpartitions or Walls extending from the shoulders formed by saidrecessing so as to form between the heads and said partitions or wallsinlet and exhaust chambers on opposite sides of the piston-chamber, incombination With a rotary piston arranged Within IOO IIO

mounted in the piston-chamber between the perforated partitions andhaving the oblique i 5 wings or blades arranged to sweep elose to saidpartitions, and a reversible valve seated on the bridge-plate,substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in zo the presence of two Witnesses.

ADELBERT SAUER.

Witnesses:

JOHN H. SIGGERS, HAROLD H. SIMMS.

